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At sh. 1190, a small smile diverges from 1st arrival 1st arrival is weak between 1090 and 1190 and non-existent b/t 1170 and 1190 signal is weak or missing over east flank of volcano. Topo does not seem drastic enough to attenuate signal this much. Bright spot delayed by ~0.6 seconds at sh. ~1100 |